I can understand your frustration, but to me some of you are reacting too strongly to this week's chapter.
Right now, we are frustrated, and we want to see Sakura fight, but at the moment she can't do nothing to fight Kaguya, she's too strong.
I'm a little frustrated too, because I don't like to see her that sad and I want her to yell at Sasuke to shut his dirty mouth. Honestly. LOL
I'm sure in some weeks, when we will have more, reading the chapters one after another will make sense and we will not feel frustration.
Right now we are impatient, and we want to see Sakura do something great.
I think Kishimoto is setting Sakura for something that will happen sooner or later.
I'm sure of it. Everytime in the past when he 'downplayed' her, it was to make her shine later on. It's also the same with his other characters. It's how Kishi is writing. Putting a character down and then make him/her stand up and shine strong.
To me, the purpose of this chapter was to say clearly that Sasuke would have let them die. Basically. To prove the difference between him and Naruto, and to begin to show to us readers how Naruto will see right through Sasuke later on.
The way Naruto frowned his eye, looking at Sasuke, is proving he is deeply doubting what Sasuke said. Because once, Sasuke saved him the same way. I think Kishi wants us to see that Naruto is seeing through Sasuke. Naruto also has frickin' teased Sasuke with his last sentence.
Right now, he doesn't care, or he's forcing him to not care, or he's blinded by his goals, or anything. But we all know that the old Sasuke will be back later on. And we all now that Naruto will dig in him like he has done with Obito and that he will find him buried deep down inside.
And I still think he checked first in the direction of Kakashi and Sakura before going to save Naruto.
I know this a SS argument they are actually using to prove Sasuke loves Sakura soooo much and all, but I still think he checked.
He checked and then he went for Naruto. He explained to Naruto everything Kakashi has done. He saw it.
I very much disagree with this what you are implying in here is that Sasuke didn't save them because he saw Kakashi doing that which mean he cares more about them if he checked them first not Naruto and defeats the whole purpose of his actions and what he was saying also don't forget that he didn't react when Sakura was stabbed there is no excuse , i understand that you may like Sasuke but you are trying to hard in order to defend him in here so please don't make him a Tsunder that's not him , he cares about them but he doesn't want to admit that so he's willing to let them die this is ridiculous even for his character .